Nehemiah 13:24

And their children spoke half in the speech of Ashdod, and could not speak in the language of Judah, but according to the language of each people.

For then will I restore to the people a pure language, that they may all call upon the name of the LORD, to serve him with one accord.

Treasury of Scripture Knowledge

And their children spake half in the speech of Ashdod, and could not speak in the Jews' language, but according to the language of each people.

For then will I restore to the people a pure language, that they may all call upon the name of the LORD, to serve him with one accord.

Neither shall you make marriages with them; your daughter you shall not give unto his son, nor his daughter shall you take unto your son.

And they took their daughters to be their wives, and gave their daughters to their sons, and served their gods.